Pith Number

pith:P3W7LAM6

pith:2018:P3W7LAM6P7NKWR2OYTBEVZZU22

not attested not anchored not stored refs pending

Stochastic Answer Networks for SQuAD 2.0

Aerin Kim, Jianfeng Gao, Kevin Duh, Wei Li, XiaoDong Liu, Yuwei Fang

arxiv:1809.09194 v1 · 2018-09-24 · cs.CL

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:04:54.061757Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7eedf5819e7fdaab474ec4c24ae734d6a7d539679a21229d9ff025f20d6c3cc0

Aliases

arxiv: 1809.09194 · arxiv_version: 1809.09194v1 · doi: 10.48550/arxiv.1809.09194 · pith_short_12: P3W7LAM6P7NK · pith_short_16: P3W7LAM6P7NKWR2O · pith_short_8: P3W7LAM6

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/P3W7LAM6P7NKWR2OYTBEVZZU22 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 7eedf5819e7fdaab474ec4c24ae734d6a7d539679a21229d9ff025f20d6c3cc0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "abcf59a6bfb479f22942313d1779ae7f6a7f2b8f82c21fd657475753265ec3b5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-09-24T19:58:07Z",
    "title_canon_sha256": "27eae038f97b976792bba3e32d1981cfefe9654e40f93a50593e6571c97fee23"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.09194",
    "kind": "arxiv",
    "version": 1
  }
}